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Subject: [Bug nptl/24774] pthread_rwlock_timedwrlock stalls on ARM
Date: Wed, 21 Apr 2021 18:26:56 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D24774

--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gn=
u.org> ---
The master branch has been updated by Florian Weimer <fw@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=3Dglibc.git;h=3Dfada9018199c21c469f=
f0e731ef75c6020074ac9

commit fada9018199c21c469ff0e731ef75c6020074ac9
Author: Florian Weimer <fweimer@redhat.com>
Date:   Wed Apr 21 19:49:51 2021 +0200

    dlfcn: dlerror needs to call free from the base namespace [BZ #24773]

    Calling free directly may end up freeing a pointer allocated by the
    dynamic loader using malloc from libc.so in the base namespace using
    the allocator from libc.so in a secondary namespace, which results in
    crashes.

    This commit redirects the free call through GLRO and the dynamic
    linker, to reach the correct namespace.  It also cleans up the dlerror
    handling along the way, so that pthread_setspecific is no longer
    needed (which avoids triggering bug 24774).

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